3.17.61d_bc Layers
Boundary conditions for 1D domains are defined using one or more 1d_bc GIS layers. Fixed field text inputs are also supported for backward compatibility. The different types of boundaries and links are described in Table 4 .22. Note, links to 2D domains are automatically created from any links specified in the 2d_bc layer (see Section 3.17).
GIS 1d_bc layer(s) contain points that are snapped to the 1D node in a 1d_nwk layer. Each point has several attributes as described in Table 4 .24.
As of Build 2005-05-AN, regions can be specified for 1D QT boundaries. If a region is used, the QT hydrograph is equally distributed to all nodes falling within the region that are not a H boundary (this includes nodes connected to the 2D domain via a 2D SX). If no suitable nodes are found an ERROR occurs.
Table 4.22 1D Boundary Condition and Link Types
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